#include <string.h>
#include <cmath>   
#include <iostream>  //预处理器指令 a PREPROCESSOR directive
#include <vector>
#include <array>

using namespace std; //使定义可见   make definitions visible

class Customer{

};

typedef Customer Item;

class Queue
{
  enum {Q_SIZE = 10};
private:
	//private representation to be developed later
  //稍后扩展私有描述
public:
	//创建具有qs限制的队列
    Queue(int qs = Q_SIZE); // create queue with a qs limit
    ~Queue();
    bool isempty() const;
    bool isfull() const;
    int queuecount() const;
    bool enqueue(const Item &item); // add item to end
    bool dequeue(Item &item);       // remove item from front
};

int main(){


  srand(time(0) / 2);
  int choice = rand(); // pick index at random
  cout << choice ;

}

